<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>知了传课首页</title>
</head>
<body>
<h1>知了传课首页</h1>
{{ user.username }} / {{ user.email }}
<div>{{ person["username"] }} / {{ person.username }}</div>
</body>
</html>